French specialist Matière to install HS2 cut and cover tunnels

Aaron Morby 2 years ago
Share

HS2’s main works contractor EKFB has appointed French engineering specialist Matière to install the first three cut and cover tunnels in Buckinghamshire and Northamptonshire.

Stanton Precast will manufacture the five segments needed for each double section
Stanton Precast will manufacture the five segments needed for each double section

Derbyshire-based Stanton Precast has also signed a deal to manufacturer over 13,000 precast concrete segments for 7km of ‘green tunnels’.

The precast firm will take on 100 staff at its Ilkeston factory, which is being expanded to deliver the big order. The pre-cast segments will then be shipped to site and assembled by a team from Matière, which has a strong track record in innovating bridges and tunnel structures.

The first big cut and cover tunnel will stretch for 2.5km past the village of Chipping Warden in Northamptonshire with assembly due to begin on site early next year.

Once complete, the structures will be covered with earth and landscaped to blend in with the surrounding countryside.

Green tunnels


Designed as a double arch, the tunnel will have two separate halves for southbound and northbound trains.

Five different concrete precast segments will be slotted together to achieve the double arch – one central pier, two side walls and two roof slabs. Each one will be steel reinforced, with the largest weighing up to 43 tonnes.

The Chipping Warden tunnel will be built in sections, with construction expected to be fully complete in 2024. A relief road has also recently been completed, which will take HS2 vehicles – and other local traffic – away from the centre of the village.

The Chipping Warden tunnel will be followed by two similar structures at Wendover in Buckinghamshire and Greatworth in Northamptonshire. All of the tunnels will have specially designed ‘porous portals’ at either end to reduce the noise of trains exiting the tunnel.

The Chipping Warden tunnel will be followed by two similar structures at Wendover in Buckinghamshire and Greatworth in Northamptonshire. All of the tunnels will have specially designed ‘porous portals’ at either end to reduce the noise of trains exiting the tunnel.

EKFB Director Peter Bimson, said:  “The Chipping Warden ‘Green Tunnel’ is a demonstrable feat. It combines a myriad of innovative techniques, from promoting safety by taking the construction process off site to delivering an end-product that will benefit the surrounding environment.

“This off-site manufacturing is the result of the collaboration between some exceptional teams, using international engineering expertise.”

Latest news

Lonsdale went down owing £65m to supply chain

More than 600 firms owed money as reduced credit rating sinks M&E giant
6 mins ago

Hunt for delivery partner to revive New Hospital Programme

Programme delivery partner to get £600m fee to get plans back on track
12 hours ago

Green light for new £780m Essex garden village

3,700 homes and four new schools to be built at Dunton Hills
8 hours ago

Laing O’Rourke makes a £288m loss

Rampant inflation on fixed-price jobs and problem contracts blow hole in accounts
16 hours ago

Keltbray, OCU and Clancy clinch £1bn electricity network upgrade

Scottish and Southern Electricity Networks awards biggest ever deals for central southern England
2 days ago

G&T enlisted for commercial review of HS2 main civils contracts

Phase 1 Main Works Civils Contracts to come under cost scrutiny
15 hours ago

TClarke order books doubles to top £1bn for first time

M&E specialist on track to exceed £500m turnover this year
16 hours ago

Wates signs Government safety remediation pact

Private builder belatedly signs fire safety developer remediation contract
16 hours ago

Liverpool all-electric industrial park approved

McLaren and Caddick in chase for Sefton 800,000 sq ft Atlantic Park scheme
1 day ago

Former Buckingham Group MD to join John F Hunt

Simon Hyams is new Managing Director for Contracting
2 days ago

Three in race for retendered £150m A9 dualling job

Bidders take another look after client takes on more risk
2 days ago

Clancy tops £300m revenue in fifth year of growth

Civils contractor delivers £13.5m pre-tax from water and energy sector work
2 days ago

Tower crane collapses on Edinburgh resi site

Jib falls onto apartment block under construction: Video
3 days ago

Salboy drops office space from Viadux Phase Two

Developer to focus on Manchester residential towers of 76 and 23 storeys
3 days ago

Warwick Uni plan for science and engineering campus

370,000 sq ft science and engineering precinct submitted for planning
2 days ago

Morgan Sindall chalks up Greater Manchester schools treble

Bury, Stockport and Wythenshawe school jobs will create 1,600 pupil places
2 days ago

Plans in for £65m Blackpool multiversity campus

Council leads plan for Talbot Gateway learning campus
2 days ago

Laing O’Rourke wins first phase of £700m Oxford R&D district

Landmark Red Hall and two labs to be built in phase 1a of Oxford North scheme
4 days ago

Ardmore wins retrofit deal on £200m Chancery Lane office

Building will be transformed to provide 105,637 sq ft of office space
3 days ago

Construction’s “Leading Lights” recognised

More than 50 winners in latest Considerate Constructors Scheme awards
3 days ago

Balfour Beatty clinches £20m Norfolk coastal defence jobs

Firm will install rock armour at Cromer and Mundesley
3 days ago

Architects join construction union Unite

Section of Architectural Workers forms official branch
3 days ago

Boot to build £20m lightweight aviation composites factory

Work starts on Sheffield University's COMPASS R&D facility
3 days ago

GMI secures £27m Leeds City College job

Site clearance underway for new Mabgate campus
4 days ago

Balfour signs deal with Koreans for UK power transmission jobs

Contractor strengthens large-scale onshore power transmission capability
4 days ago

36 storey south London build to rent flats tower approved

Construction to start next year on £220m Croydon scheme
4 days ago

Hunt for firms for £400m volumetric offsite deal

Procurement for Housing aims to expand its pool of firms on major offsite framework
4 days ago

Graham wins £87m Jock’s Lodge junction upgrade

Spring start for East Riding A164 improvement scheme near Beverley
7 days ago

Giant concrete pour at HS2 Curzon Viaduct: Video

Over 2,000 cubic metres create the first two 90 metre viaduct deck structures,
4 days ago

Cladding safety contractors told to wear body cameras

Insurance giant AXA to record remedial work
4 days ago

Contractor services